I am using exocad dental software .I bought the parallels for installing my software in my mac but i tried everything but i can't open .. every configuration i tried (network, usb etc..)i am tired of that parallels.Despite its working in every pc without any errors..In parallels this error below how can i solve it ? Can U help? --"Online Authorization Required for that software" error-- I have original licence for that software works in all my 3 pcs perfectly .. But i have macbook pro with parallels fails and i tried in my friends pc same error.